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IP Disputes

We handle a wide variety of disputes and provide pre-dispute advice. Our successful litigation and settlement practice spans all areas of intellectual property law, with particular emphasis on contentious work in the fields of not only patents and utility models, but also trademarks, design rights, copyrights, passing-off and other violations of the Act on Prevention of Unfair Competition. We also have ample experience in employee invention compensation cases. Our lawyers, including former judges of the Intellectual Property High Court and lawyers with technical backgrounds, who are familiar with both law and technology, pour their energy and skill into resolving the disputes, bringing fruitful results in many leading cases.

Many of our lawyers, who are fluent in English and German, have substantial experience with IP litigation and arbitration not only in Japan but also in the United States and other leading commercial jurisdictions. This breadth of exposure forms the basis of a cross-border window, which we think is unique in Japan: the ability to provide foreign clients with familiar context and reference points in making key litigation decisions.


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February 26, 2018

NO&T Seminars

"US Patent Litigation ‒ Recent Developments, Trends and Best Practices"

Kenji Tosaki, Hironobu Tsukamoto 

January 29, 2018


Outline of Civil Trial for Intellectual Property, Case Study

Kenji Tosaki, Koei Matsushita 

November 18, 2016


UPC Mock Trial "UPC and Patent Invalidity Defense"

Ryoichi Mimura 

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August, 2015


Japanese court recognizes copyrightability of industrial design for the first time – the Tripp Trapp chair case

NO&T Japan Legal Update No.2 (August, 2015)

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Recovering your losses

The 2013 Guide to Japan 11th Edition A Supplement to International Financial Law Review, April 2013

Kenji Tosaki 

July, 2011


Das Patentrecht in Japan - Unterschiede zum deutschen Patentrecht und aktuelle Entwicklung

50 Jahre Bundespatentgericht Festschrift zum 50jährigen Bestehen des Bundespatentgerichts am 1. Juli 2011

Ryoichi Mimura 

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April 6, 2018


High evaluation received in the 2019 Edition of "The Best Lawyers in Japan"

February 19, 2018


NO&T recognized by Chambers Global 2018

December 11, 2017


NO&T recognized by Chambers Asia-Pacific 2018

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